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Help a noob. Please. BEC, ESC, New Servo for Flux. - 11/20/2012 5:48 PM   
jamesfarrell


 

Posts: 23
Score: 100
Joined: 11/10/2012
Last Login: 12/29/2012
From: WorcesterMA, USA
Status: offline 		Confused here. I have an HPI Savage Flux HP. My life was not painful enough, so I decided to get back into RC. I have a Savage Flux HP. I've converted it to TCS 1/5 scale chassis. I'm replacing the servo as it hardly moves the wheels, and I have a $150 JR High Voltage, High Torque 7.4 Volt Servo

Now, I don't know much about electronics. I'm using all the stock electronics. The only difference will be the servo. What I'd like to do, to get the max torque / speed out of the servo is to use a 7.4 Receiver pack. 

However since the Flux ESC is now powering the receiver, I'm not sure if I can just hook up a 7.4V 2s Lipo pack to the receiver. Do I need to disconnect the power from the ESC > Receiver first (red wire)?

Can the receiver handle the 7.4 volts? What is the stock voltage that the receiver gets from the ESC. I've emailed Castle, and HPI. No response in 5 days. 

Do I need to use a BEC as well? I wish I knew what I was doing. 

Any help appreciated. 


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RE: Help a noob. Please. BEC, ESC, New Servo for Flux. - 11/20/2012 6:07 PM   
yakfish



Posts: 2429
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Joined: 2/16/2008
Last Login: 6/18/2013
From: Fairborn, OH, USA
Status: offline 		The Castle Mamba Monster ESC (which I guess is what comes with the Flux rebranded as HPI)has a fixed output of 5.5v. I have no idea what receiver it has or what the voltage limit is for it. But I have used high voltages servo with recievers only rated for 6v and when I cranked the BEC up to 7.4v the receiver caught fire and it also killed the servo. So make sure the receiver can handle HV first! LOL!

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RE: Help a noob. Please. BEC, ESC, New Servo for Flux. - 11/20/2012 6:24 PM   
jamesfarrell


 

Posts: 23
Score: 100
Joined: 11/10/2012
Last Login: 12/29/2012
From: WorcesterMA, USA
Status: offline 		 But there's no harm in just pluggin in the servo to the receiver as is, right? It will just receive lower voltage correct and may operate a tad slower?

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RE: Help a noob. Please. BEC, ESC, New Servo for Flux. - 11/21/2012 7:24 AM   
yakfish



Posts: 2429
Score: 426
Joined: 2/16/2008
Last Login: 6/18/2013
From: Fairborn, OH, USA
Status: offline 		Yes your servo will still work on standard voltage. And it will not harm your RX.

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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Monster Trucks >> HPI Monster Truck Forum >> Help a noob. Please. BEC, ESC, New Servo for Flux.
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